text: Among the naturally occurring isotopes of platinum, Pt is the most abundant (33.8%) and the only one with non-zero spin I=1/2. The magnetic properties of the nucleus are considered favourable; the high natural abundance coupled with a medium gyromagnetic ratio (5.768×10 rad T s) result in good Pt NMR signal receptivity, 19 times that of C (but still only 0.0034 times that of H).
  The resonance frequency (relative to a 100 MHz H NMR instrument) is approximately 21.4 MHz, close to the C resonance at 25.1 MHz.